New Model Available: Claude Fable 5.2

Anthropic released Claude Fable 5.2, a model the company positions for demanding reasoning and long-horizon agentic work, including agent sessions that run for hours, multistep deep research, and analysis carried through to a finished document, spreadsheet, or deck. The model listing reports 24-hour uptime, throughput, and latency metrics on AI Gateway traffic, with benchmark scores sourced from Artificial Analysis. The release gives developers a new Anthropic option for extended agentic and research workloads.

Claude Fable 5.2 is built for demanding reasoning and long-horizon agentic work. Typical uses include agent sessions that run for hours, multistep deep research, and analysis carried through to a finished document, spreadsheet, or deck. Back to Models https://zenmux.ai/models Providers Route requests across multiple providers. Copy a provider slug to set your preference. Uptime 24hours Direct request success rate on AI Gateway and per-provider. Throughput 24hours P50 throughput on live AI Gateway traffic, in tokens per second TPS . Latency 24hours P50 time to first token TTFT on live AI Gateway traffic, in milliseconds. Activity Token volume and request traffic to this model over time. Benchmarks Scores on standardized evaluations. Higher percentages are better — and rank percentile shows Metrics sourced from Artificial Analysis https://artificialanalysis.ai/ Apps Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for. View All https://zenmux.ai/analytics/apps Related Models More models from Anthropic https://zenmux.ai/anthropic